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Finding the Fourth Proportional to 90,517.77, 124,929.54 and 52,792.02

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Solution

The fourth proportional to 90,517.77, 124,929.54 and 52,792.02 is: 72,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,517.77 : 124,929.54 = 52,792.02 : x
  2. Step 2: Convert to fraction form
    90,517.77/124,929.54 = 52,792.02/x
  3. Step 3: Cross multiply
    90,517.77x = 124,929.54 × 52,792.02
  4. Step 4: Simplify right side
    90,517.77x = 6,595,282,774.27
  5. Step 5: Solve for x
    x = 6,595,282,774.27/90,517.77
  6. Step 6: Final answer
    x = 72,861.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.